<div>
  <label class="switch">
    <input type="checkbox" />
    <span>
      <em></em>
      <strong></strong>
    </span>
  </label>
</div>

<style>
/* From Uiverse.io by Cksunandh  - Tags: switch */
.switch {
  height: 24px;
  display: block;
  position: relative;
  cursor: pointer;
}
.switch input {
  display: none;
}
.switch input + span {
  padding-left: 50px;
  min-height: 24px;
  line-height: 24px;
  display: block;
  color: #99a3ba;
  position: relative;
  vertical-align: middle;
  white-space: nowrap;
  transition: color 0.3s ease;
}
.switch input + span:before,
.switch input + span:after {
  content: "";
  display: block;
  position: absolute;
  border-radius: 12px;
}
.switch input + span:before {
  top: 0;
  left: 0;
  width: 42px;
  height: 24px;
  background: #e4ecfa;
  transition: all 0.3s ease;
}
.switch input + span:after {
  width: 18px;
  height: 18px;
  background: #fff;
  top: 3px;
  left: 3px;
  box-shadow: 0 1px 3px rgba(18, 22, 33, 0.1);
  transition: all 0.45s ease;
}
.switch input + span em {
  width: 8px;
  height: 7px;
  background: #99a3ba;
  position: absolute;
  left: 8px;
  bottom: 7px;
  border-radius: 2px;
  display: block;
  z-index: 1;
  transition: all 0.45s ease;
}
.switch input + span em:before {
  content: "";
  width: 2px;
  height: 2px;
  border-radius: 1px;
  background: #fff;
  position: absolute;
  display: block;
  left: 50%;
  top: 50%;
  margin: -1px 0 0 -1px;
}
.switch input + span em:after {
  content: "";
  display: block;
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  border: 1px solid #99a3ba;
  border-bottom: 0;
  width: 6px;
  height: 4px;
  left: 1px;
  bottom: 6px;
  position: absolute;
  z-index: 1;
  transform-origin: 0 100%;
  transition: all 0.45s ease;
  transform: rotate(-35deg) translate(0, 1px);
}
.switch input + span strong {
  font-weight: normal;
  position: relative;
  display: block;
  top: 1px;
}
.switch input + span strong:before,
.switch input + span strong:after {
  font-size: 14px;
  font-weight: 500;
  display: block;
  font-family: "Mukta Malar", Arial;
  -webkit-backface-visibility: hidden;
}
.switch input + span strong:before {
  content: "Unlocked";
  transition: all 0.3s ease 0.2s;
}
.switch input + span strong:after {
  content: "Locked";
  opacity: 0;
  visibility: hidden;
  position: absolute;
  left: 0;
  top: 0;
  color: #02923c;
  transition: all 0.3s ease;
  transform: translate(2px, 0);
}
.switch input:checked + span:before {
  background: #eae7e7;
}
.switch input:checked + span:after {
  background: #fff;
  transform: translate(18px, 0);
}
.switch input:checked + span em {
  transform: translate(18px, 0);
  background: #02923c;
}
.switch input:checked + span em:after {
  border-color: #02923c;
  transform: rotate(0deg) translate(0, 0);
}
.switch input:checked + span strong:before {
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  transform: translate(-2px, 0);
}
.switch input:checked + span strong:after {
  opacity: 1;
  visibility: visible;
  transform: translate(0, 0);
  transition: all 0.3s ease 0.2s;
}

.switch :before,
:after {
  box-sizing: border-box;
}

</style>
    